Charles and Jon talk to legendary mammalogists and conservationists John and Terese Hart about 50 years' of work in the Congo rainforest.  John and Terese have made an enormous contribution to studying and protecting African biodiversity and have had way more than their fair share of adventures en route. From discovering new monkey species to studying Okapis, they share spellbinding stories that are guaranteed to make mammalwatchers weak at the knees. For more information visit www.mammalwatching.com/podcast Cover photo: Radio collared Okapi. The MaMbuti taught us how to capture them safely. John & Terese Hart. Dr Charles Foley is a mammalwatcher and biologist who, together with his wife Lara, spent 30 years studying elephants in Tanzania. They now run the Tanzania Conservation Research Program at the Lincoln Park Zoo in Chicago. Jon Hall set up mammalwatching.com in 2005. Genetically Welsh, spiritually Australian, currently in New York City. He has looked for mammals in over 100 countries.